

Ok, I know I won't get perfect results. Luckily, this is primarily on the underside of the bumper so I really don't need it to be perfect. I'm just looking for it to look better.

I've alread ordered my touch-up paint + clear. I've done lots of research on Paint-Chip repair. I have Optimum Compound at my disposal to remove wetsand marks.
Some of my questions are- what type of grits of sandpaper should I get? I imagine I'll need to wetsand to smooth it down a bit, apply the touch-up, apply the clear, wetsand again to level, and then polish.
Anything else that I should have at my disposal?
Car is a 2008 VW R32 in Candy White. Scratch is about 1/2" wide at its widest point. The "crease" you see is actually were the bumper goes from the lowest front view to the underside.
Thanks!